Stock prod



FIG. 1 is a top plan of a stock prod embodying our new design;

FIG. 2 is a side elevation thereof with the opposite side elevation being a mirror image thereof;

FIG. 3 is a bottom plan thereof;

FIG. 4 is a front elevation thereof; and,

FIG. 5 is a rear elevation thereof. 

The ornamental design for stock prod, as shown and described. 